Bullock, 46, also has homes in Texas, where Zellweger was born, and in New Orleans. She went through a highly-publicized breakup of her own last year. The Oscar-winning actress divorced husband Jesse James amid reports that he had cheated on her, which he later confirmed.

"She's going out with friends and she's moving on," the magazine quoted a source close to Zellweger as saying. "She hasn't been working because she wanted to really put time and energy into the relationship. Now she's going back to work."

Zellweger is known for starring in films such as "Bridget Jones's Diary" in 2001 and won an Oscar for her part in the 2004 movie "Cold Mountain."